Comment
On figure 3a it looks like the F1 is F0*2 and F2 is F1*2 and so on. Should not F2 be F0*3?
You are correct. The third sine-wave curve is wrong. The author and the author send their thanks for your sharp eye!--the editors
posted by Steinar Myren
August 11, 2008
About once a month at Sigma Xi headquarters, we liven up the lunch hour with an American Scientist Pizza Lunch talk. In these informal lectures, scientists describe new research to nonscientists. The series is light on jargon but heavy on solid science. Each Pizza Lunch offers an in-depth look at its subject, whether it's bedbugs or the smart grid. Click below to read about and download these talks -- and to subscribe!

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